Double channel roll bar for retractable awnings



FIG. 1 is an end elevation of the roll bar of the present invention.

FIG. 2 is a side elevation of the roll bar as shown in FIG. 1.

FIG. 3 is a top plan view of the roll bar as shown in FIG. 1. 

The ornamental design for a double channel roll bar for retractable awnings, as shown. 